Originally Posted by
lwildernorva
If you can still take a personal item, not really. Plenty of those items still touch underneath seats (I'm assuming carryons touching each other in the overheads so as to spread contagions is the concern here) so I don't see any way that the airlines restrict carryon items other than to perhaps downsize them a bit (which could have happened without the pandemic) so as to drive more luggage fees.
I assume this would take the form of permanently locking the overhead bins.